I'm planning on submitting a bug, but thought I'd poll the population first since I'm having trouble putting together a good bug report (solid lockup).
It's been a while since I updated the kernel on my T61, was at hardened-sources-3.2.1. Updating to 3.3.6 this week produced a viable kernel, but when X starts the system locks hard. In trying different kernels I've found that the regression is somewhere between the 3.2.2-r1 and 3.2.11 versions in the mainstream portage tree. The following is the only dump I've been able to capture, as about 9/10 the system locks beyond SSH recovery; apologies for the zram/zcache taint, it was captured before I started debugging and eliminated those. It is, however, consistent with all subsequent ones I've seen (same IP, same call trace). I do notice that 'make oldconfig' in the 3.2.11 tree with the config from 3.2.2-r1 comes up with a single new option, CONFIG_KCOPY. Thoughts? BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 IP: [<ffffffff81278070>] i915_gem_execbuffer_reserve.clone.10+0x14/0x330 PGD 7660e000 Oops: 0000 [#1] SMP CPU 1 Modules linked in: af_packet xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables ip6table_filter ip6_tables x_tables ipv6 xfs zcache(C) zram(C) loop fuse fat kvm_intel kvm isofs tun snd_hda_codec_analog pcmcia arc4 sr_mod cdrom sdhci_pci firewire_ohci pcspkr i2c_i801 sdhci yenta_socket mmc_core firewire_core iwl4965 pcmcia_rsrc pcmcia_core crc_itu_t iwl_legacy snd_hda_intel mac80211 uhci_hcd ehci_hcd snd_hda_codec cfg80211 snd_hwdep snd_pcm usbcore snd_page_alloc e1000e usb_common snd_timer thinkpad_acpi nvram hwmon snd tpm_tis soundcore wmi tpm rfkill battery ac tpm_bios evdev unix Pid: 3272, comm: X Tainted: G C 3.2.11-hardened #2 LENOVO 7659C29/7659C29 RIP: 0010:[<ffffffff81278070>] [<ffffffff81278070>] i915_gem_execbuffer_reserve.clone.10+0x14/0x330 RSP: 0018:ffff880075421b58 EFLAGS: 00010292 RAX: ffff88007584c200 RBX: ffff880075421c88 RCX: ffff880075421c88 RDX: ffff880075421c88 RSI: ffff880075421c88 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88007671b070 R09: ffff8800756c4300 R10: 0000000000000002 R11: 0000000000000000 R12: ffff880075421da8 R13: ffff880074f39000 R14: ffff880075f86960 R15: 0000000000000000 FS: 0000032c1cd63880(0000) GS:ffff88007d500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000018 CR3: 00000000013aa000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process X (pid: 3272, threadinfo ffff8800754b2028, task ffff8800754b1c00) Stack: 0000000000000020 ffff880075f869a0 0000007831f934b0 ffffffff81277d71 ffff88007a29cc00 0000000000000000 0000000000000000 ffff880075421da8 ffff880074f39000 ffff880075f86960 0000000000000002 ffffffff81278d7c Call Trace: [<ffffffff81277d71>] ? copy_from_user+0xf3/0x134 [<ffffffff81278d7c>] ? i915_gem_do_execbuffer.clone.12+0x9de/0x1256 [<ffffffff81279a24>] ? i915_gem_execbuffer2+0xe2/0x256 [<ffffffff810aebdd>] ? handle_pte_fault+0x61f/0x67f [<ffffffff81254463>] ? drm_ioctl+0x39a/0x5c4 [<ffffffff81279942>] ? i915_gem_execbuffer+0x34e/0x34e [<ffffffff810de7a6>] ? do_vfs_ioctl+0x62d/0x6d8 [<ffffffff8139efa0>] ? page_fault+0x30/0x40 [<ffffffff8139ed6e>] ? retint_swapgs+0xc/0x12 [<ffffffff810de88d>] ? sys_ioctl+0x3c/0x5f [<ffffffff8139f47b>] ? system_call_fastpath+0x18/0x1d Code: 48 39 c2 76 09 48 83 c4 08 e9 52 e2 e4 ff 48 83 c4 08 e9 71 1d e4 ff 41 57 49 89 ff 41 56 41 55 41 54 55 53 48 89 f3 48 83 ec 28 <48> 8b 47 18 48 8b 80 30 03 00 00 48 8b 40 08 80 38 03 48 8d 44 RIP [<ffffffff81278070>] i915_gem_execbuffer_reserve.clone.10+0x14/0x330 RSP <ffff880075421b58> CR2: 0000000000000018
